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https://issues.apache.org/jira/browse/YARN-7695?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16309245#comment-16309245
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stefanlee commented on YARN-7695:
---------------------------------
i have a simple fix .in *RMActiveServices.serviceInit*
{code:java}
// Initialize the scheduler
if (scheduler == null) {
scheduler = createScheduler();
}
{code}
[~yufeigu] [~templedf]please have a look.
> when active RM transit to standby , this RM will new another
> FairSchedulerUpdate Thread
> ---------------------------------------------------------------------------------------
>
> Key: YARN-7695
> URL: https://issues.apache.org/jira/browse/YARN-7695
> Project: Hadoop YARN
> Issue Type: Bug
> Components: fairscheduler, resourcemanager
> Affects Versions: 2.4.0
> Reporter: stefanlee
>
> 1. i test haoop-2.4.0 in my cluster.
> 2. RM1 is active and RM2 is standby
> 3. i delete /yarn-leader-election/Yarn/ActiveStandbyElectorLock from ZK
> 4. RM1 then transit from active to standby success.
> 5. at last ,i print RM1 jstack info and found two "AllocationFileReloader"
> and two "FairSchedulerUpdateThread" in RM1.
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